Garmin Descent Mk1

$1,399.00 $1,349.00

The Descent Mk1 includes an Apnea mode for recreational and competitive free divers, and Apnea Hunt mode for spear fishers.

Explore worlds of adventure, underwater or topside, with Descent Mk1 dive computer. It’s the first watch-style dive computer to offer surface (land or water) GPS navigation with color mapping and multisport features.


Garmin Descent Mk1

Explore new worlds of adventure, underwater or topside, with the Garmin Descent Mk1. It’s the most versatile GPS dive computer for your diving adventures, the first watch-style dive computer to offer surface (land or water) GPS navigation with full onscreen colour mapping, location reference and wrist-based heart rate.

Whether you dive with or without tanks, in fresh water or saltwater, breathing air, nitrox, trimix or simply holding your breath — the Descent Mk1 is the intuitive, do-it-all dive computer you’ve been waiting for.

You can plan your dives right on the Garmin Descent Mk1, then use GPS way-points to mark your dive entry and exit points. Choose modes for single and multiple gas dives (including nitrox and trimix), gauge and apnea.

There’s also a built-in 3-axis compass for navigation above or below the waterline. The computer activates automatically underwater and uses the proven Bühlmann ZHL-16c  algorithm with configurable conservatism settings.

Selectable tone and vibration alerts help keep you informed and safe throughout your dive.

Features of the Garmin Descent Mk1:

  • Premium full-featured dive computer
  • Sleek watch-style design
  • Bright 1.2” color display
  • Surface GPS
  • Built-in TOPO mapping
  • 3-axis compass, altimeter and multi sport features
  • Multiple dive operating modes (single-gas, multi-gas, gauge and apnea)
  • High-sensitivity GPS and GLONASS receiver provides surface navigation and automatically marks your dive entry and exit points
  • Selectable tone and vibration alerts help keep you informed and safe
  • Displays depth, dive time, temperature, NDL/TTS, ascent/descent rates, gas mix, PO2, N2 loading, decompression stop information and more
  • Elevate wrist heart rate technology for heart rate monitoring without a chest strap
  • Configurable conservatism feature allows for custom settings to match your experience level, overall fitness and personal safety limits
  • Auto dive log lets you store and review data from up to 200 dives — and share online via Garmin Connect™online fitness community and its included mobile app
  • Includes multiple preloaded activity profiles for all of your sports and adventures, including swim, run, bike, ski, row, paddle board and more
  • Battery performance: up to 19 days in watch mode, 10 days in smartwatch mode, 40 hours in dive mode and 20 hours in GPS mode (depending on settings)
  • Color: Silver Sapphire with Black Band


Garmin Descent Mk1 Specifications

Battery type

Rechargeable, built-in lithium-ion battery

Battery life

Up to 12 days

Water rating

10 ATM* Dive (EN 13319)**

Operating and storage temperature range

From -20º to 50ºC (from -4º to 122ºF)

Underwater operating temperature range

From 0º to 40ºC (from 32º to 104ºF)

Charging temperature range

From 0º to 45ºC (from 32º to 113ºF)

Wireless frequencies

ANT‍+® 2.4 GHz @ -1 dBm nominal, Bluetooth® 2.4 GHz @ 0 dBm nominal, Wi‑Fi® 2.4 GHz @ 12 dBm nominal

Wireless protocols

ANT‍+ wireless technology

Bluetooth Smart device

Wi‑Fi technology (applicable models)

*The device withstands pressure equivalent to a depth of 100 m. For more information, go to

**Designed to comply with CSN EN 13319.


Battery Life of the Garmin Descent Mk1

The actual battery life depends on the features enabled on your device, such as activity tracking, wrist-based heart rate, smartphone notifications, GPS, internal sensors, and connected sensors.

Battery Life


Up to 12 days

Smartwatch mode with activity tracking and 24/7 wrist-based heart rate monitoring

Up to 20 hours

GPS mode with wrist-based heart rate

Up to 35 hours

UltraTrac GPS mode with gyro-based dead reckoning

Up to 40 hours

Dive mode


Data Management Garmin Descent Mk1

NOTE: The device is not compatible with Windows® 95, 98, Me, Windows NT®, and Mac® OS 10.3 and earlier.

Garmin Descent Mk1 Owner’s Manual

Click here.

Want to see what else we have in the way of free-dive computers? Click here.


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